Remove -reduce-joining-phys-regs options. Make it on by default.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35165 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp
index 4a6a561..36db38e 100644
--- a/lib/CodeGen/LiveIntervalAnalysis.cpp
+++ b/lib/CodeGen/LiveIntervalAnalysis.cpp
@@ -42,7 +42,6 @@
STATISTIC(numPeep , "Number of identity moves eliminated after coalescing");
STATISTIC(numFolded , "Number of loads/stores folded into instructions");
STATISTIC(numAborts , "Number of times interval joining aborted");
-static cl::opt<bool> ReduceJoinPhys("reduce-joining-phy-regs", cl::Hidden);
namespace {
RegisterPass<LiveIntervals> X("liveintervals", "Live Interval Analysis");
@@ -937,8 +936,7 @@
// virtual register. Once the coalescing is done, it cannot be broken and
// these are not spillable! If the destination interval uses are far away,
// think twice about coalescing them!
- if (ReduceJoinPhys && !mopd->isDead() &&
- MRegisterInfo::isPhysicalRegister(repSrcReg)) {
+ if (!mopd->isDead() && MRegisterInfo::isPhysicalRegister(repSrcReg)) {
// Small function. No need to worry!
unsigned Threshold = allocatableRegs_.count() * 2;
if (r2iMap_.size() <= Threshold)